Severe calcific tendonitis pain?

i was diagnosed with this in my left shoulder a few weeks ago, and got a cortisone injection. Pain went away shortly and never returned. A few days ago, I began to have mild discomfort in my right shoulder, then over the period of a couple days, it went from mild, to bad to worse. I'm typing this with one hand. I cant hardly move this arm at all without inducing stabbing pain. I had to go to a different doc, who treated me like crap, cuz i cant get in to my doc till next tuesday. Bad doc reluctantly gave me an injection, wanted me to spend a bunch of money on an MRI. Long story short, my shoulder hurts like SOB and I have to wait till tues to go to good doc. Is it normal that this pain should be this acute and is there anything i can do to relieve it till tues? I am a 32 year old female with lupus nephritis.

If you have had tendinitis before you might know these solutions. However it is unusual to have such pain in a shoulder which is not being overused. Anyways, try this till tuesday....

1) Take pain reliever such as Ibuprofen/Advil or even Tylenol Extra Strength works well. These will help reduce the pain immediately.

2) Apply Ice for 15-20 mins. Do not apply the ice directly on the skin, keep the layer of a cloth.

3) Do not go crazy and swing your arm thinking that it will get better right away.

4) Don'T do any activity which hurts.